Any person who, knowing that he or she is not privileged to do so, enters or remains in any place where notice against trespass is given by:
is guilty of a Class 2 misdemeanor. However, if such trespasser defies an order to leave, personally communicated to him or her by the owner of the premises or by any other authorized person, the trespasser is guilty of criminal trespass, which is a Class 1 misdemeanor.
SDCL 22-35-6